Cutter or knife for meat-grinding machines



Nov. s, 1928. 1,690,904

C. A. LAEMMEL CUTTER 0R KNIFE FOR MEAT GRINDING MACHINES Filed Oct. 20, 1927 314021 Wop (24 161. [aemml Patented Nov. 6, 192 8. 2

UNITED STATES- PATENT OFFICE.

CHARLES A. LAEMMEL, OF BROOKLYN, NEW YORK, ASSIGNOR TO ATIiAN'lSIO SERVTCE COMPANY, INC., OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

CUTTER OR'KNI'FE FOR MEA'I -GRIND'IN G MACHINES.

Application filed October 20, 1927. Serial No. 227,486.

My invention relates to new and useful improvements in meat choppers and more particularly to the knife or rotary cutter and its manner of support. 5 As is well known to those skilled in the art, meat choppers in general consist of a cylinder in whichthere is a means such as a spiral for advancing the meat, while at the front end of the cylinder is ,located a knife that is rotated through the motion of the spiral. In front of the knife is located a plate provided with a plurality of openings through which the meat, is forced, to thus produce the long thin threads.

There are many different forms of knives or rotary cutters used in conjunction with these meat choppers and the present invention contemplates the use of a special form of support on which there is removably mountd the novel rotary knife or cutter.

Another object of the invention conte1n plates the use of a knife which is simply a metal stamping so that these knives may be made up commercially in larger quantities at a minimum price. v

Still another object of the inventlon 1s to provide a means of support in the form of a spider, two opposite arms of wh1ch may be provided with small pins, so that the knife or rotary cutter may be placed up against the spider and pinned against rotary movement with relation to the spider but at the same time may be quickly removed when it is desired to either sharpen the "knife or to substias tute a new one.

With these and other objects in view, the invention consists in certain new and novel arrangements and combination of will be hereinafter more fully described and 4.0 pointed out in-the' claims.

Referring now to the drawings showmg'a preferred embodiment, Y

Fig. 1 is a fragmentary view in elevation with a ortion broken away to show the knife and ho der in section.

Fig. 2 is a sectional view taken on line 22 Fig. 5 is a view showing the knifeandspider before assembly.

Referring now more particularly to the on several views, there is shown in Fig. 1, a 0on5 'while extending. from arts, as

ventional form of meat chopper comprising the body- 1 and the handle 2, there being mounted in the body the conventional spiral 3, in which is threaded a portion of the spider or support 4.

I. O o I o The knlfe or cutter 5 is shown in pos1t1on and abuts or contacts with the inner surface of perforated plate 6, which plate forms the subs ect matter of a co-pending application, filed by me on October 7, 1927, bearing Serial No. 224,584. This plate may be held in position by a cap 7, as the plate and knife are often removed to clean the cho per or when it is desired to install a new p ate or a new knife.

Referring now more specifically to the gist two of the arms are the small pins 13. This spider may be in the form of a small casting or may be a stamping or may be otherwise nlllade just so it is strong and commercially 0 cap.

Now designed to be mounted on this spider is the rotary knife or cuttep 5, which may be a metal stamping and consistof the hub 14 thehub are the four their outer edges ofi-' blades 15, which have weremade from either high speed tool steel or other expensive forms of steel and are relatively expensive'to manufacture. The

present knife is a far cheaper form, as it may be stamped out the (pfi-setedges of the blades quickly sharpone Y Again the cost of the knife is so relatively low that it may be discarded and anew one substituted, as a number of these knivescan 2e manufactured at the cost of one ofthe old y This knife or "cutter is provided with two small holes 13', that are designed to registerment 'of'the spider will transmit its motion to the rotary knife or cutter. i

with dies in a heavy press and of the invention and to Figs. 4 and-5 for the set as at 16, which edges may then be ground,

. with the pins 13 of the spider, sothata move- By providing ;a structure of this kind, it

' will be seen that the rotary cutter snugl fits on the shaft .8 and ti htly pinned witrelation'to the spider wh' e at the same time the arms oi the spider brace the plates of the eutter, making it possible to use a cutter that is simply a thmmetal stamping.

- Furthermore,

when desired.

I am aware that it is old to provide cutters that may be readily inter-changeableand it is old toprovide backing plates for the cutters or to provide several plates, am aware, it is new and novel'to provide a relativel cheap and stron spider, on whi .a cutterus .to be pinned an which cutter consists of a thin sheet of metal withportions removed to form blades, which blades in turn are simply ofi-setat their edges sharp- Many slight changes might be made without in anyway departing from the spirit and $00 of the invention. ving. thus desc claim is. new and desire to secure by Letters reams? 1. A cutter for a.- meat grinder comprisin a spider said 'spider comprising a shaft an the api er arms 'in fixed relation with the outwardly. extending pins on the itis but the work ofa 1110-- ment totake out" the plate and simply withdraw the cutter slip a new one in place butas far as 1 'bed' the same what I s ider, a knife provided with holes a; fit 0s t e pins of the spider and saidknife being quickly detachable from the spider.

- 2; A cutter for meat grinder comprising a an a spider, member provl said spider comprising a shaft on said shaft, projecting pins on said spider,

v a knife having means to cooperate with said pins on said spider for preventing rotation with respec comprising a p t of one to the other and said knifelurality of integral blades, the

ded with arms tightly fitting cutting edges of which are off-set from the normal plane of the blades.

3. A cutter for a meat grinder comprisin a shaft, spider arms fixedly mounted on sai shaft, a knife comprising radial "blades and oh adapted. to "register with the arms of the spider and fixed means spaced from the ends of the spider arms cooperating with the knife for reventing rotation) to th thr, and said means allowing for the quick removal of said lmife.

. 4. A'quickly grinder, fixedly mount from,

knife PI'OVl for a meat ed shaft, a spider respect to the spider.

of one with regard- In testimony whereof I my si ature.

I CHARLES amp EL; 

